Chapter 58

Sharpening our Senses 

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Sharpening our senses can mean two things: making them physically more acute (improving how well we see, hear, taste, touch, and smell) and training our awareness (noticing more of what we’ve sensed). Both sides matter, since the raw input and our brain’s interpretation work together.

Ways to Sharpen the Five Senses

Vision

  • Rest your eyes: Follow the 20-20-20 rule (every 20 minutes, look at something 20 feet away for 20 seconds).
  • Eat for eye health: Foods rich in vitamin A, lutein, and omega-3s (carrots, leafy greens, salmon) support vision.
  • Practice focus: Shift your gaze between near and far objects to train your eye muscles.
  • Awareness training: Try “mindful seeing” - notice colors, shapes, and patterns in ordinary places.
  • Take advantage of optical technology: Make periodic visits to eye specialists. Wear glasses or contacts, or have surgery to correct or compensate for deficiencies. Most people my age have some degree of cataracts. Be vigilant about their progression and possible glaucoma. 

Hearing

  • Protect your ears: Avoid loud environments or wear ear protection; hearing damage is often permanent.
  • Sound meditation: Sit quietly and count how many distinct sounds you can identify.
  • Practice active listening: Focus fully on one sound source (a person’s voice, a bird, a musical instrument).
  • Diet & circulation: Good cardiovascular health supports sensitive hearing.
  • Purchase a hearing aid: Hearing loss can have a dramatic effect on your social life. Isolation leads to many other health problems. 

Smell

  • Scent training: Smell spices, herbs, or essential oils with your eyes closed, then try to identify them.
  • Limit overexposure: Avoid heavy perfumes or strong chemicals that can dull sensitivity.
  • Mindful breathing: Breathe deeply through your nose and notice subtle changes in scents around you. 

Taste

  • Eat slowly: Chew thoroughly and savor food instead of rushing meals.
  • Reset your palate: Reduce sugar and ultra-processed foods, which can overwhelm taste buds.
  • Taste training: Blindfold yourself and try to identify ingredients in simple foods.
  • Stay hydrated: A dry mouth dulls taste. 

Touch

  • Texture exploration: Close your eyes and handle objects with different surfaces (stone, wood, fabric).
  • Temperature sensitivity: Run your hands under warm and cool water alternately to heighten awareness.
  • Body awareness: Practices like yoga, tai chi, or meditation help you notice subtle bodily sensations.
  • Protect skin: Good hydration and skincare preserve sensitivity.
  • See your dermatologist: Skin cancer is serious business. Be vigilant. 

…and then some more

As discussed in Chapter 10, science has shown we have more than just five senses. They include Proprioception, Vestibular sense, Interoception, Thermoception, and Nociception. These “hidden senses” are sharpened in athletes, dancers, musicians, and meditators, who often display extraordinary awareness of balance, rhythm, or bodily signals. Training interoception, for example, helps regulate emotions and improves decision-making. 

Expanding Sensory Awareness Through Practice

For most, our senses are naturally sharp, but modern life (noise, screens, processed food, stress) often dulls them. Sharpening them means protecting our physical organs and training attention so we fully register the signals they send.

Here are some practices for training the mental aspects of our senses:

  • Meditation: Heightens interoception (heartbeat, breath) and quiets background noise, allowing subtler perceptions to surface.
  • Artistic training: Painters, chefs, and musicians often “expand” a sense by working with finer details most people overlook.
  • Silence and darkness retreats: With reduced input, the brain amplifies subtle signals, expanding awareness.
  • Nature immersion: Time outdoors recalibrates senses dulled by artificial environments, reattuning us to natural rhythms of sound, scent, and movement. Living for a time in the woods, I discovered how cities assaulted my senses every time I came down from my mountain. Most of us are unaware of how overwhelming urban life can be. 

The Philosophy of Sensing

Classic philosophers saw sense perception as the root of knowledge. Aristotle categorized the senses, but also admitted they connect in surprising ways. Kant argued our senses shape not just experience, but reality itself. Eastern traditions went further, teaching that through meditation one could sharpen the senses to perceive impermanence, interconnectedness, and the subtle energies of the mind.

“Sharpening our senses” is not just biological fine-tuning but existential awakening: learning to see reality as it truly is, rather than through the haze of habit, distraction, and assumption.

In summary…

Humans are sensory beings, but we use only a fraction of our perceptual capacity. By protecting our sensory organs, training our attention, and exploring “hidden senses,” we expand awareness beyond the classical five senses. More than a biological exercise, this is a spiritual and philosophical journey. To sharpen the senses is to sharpen life itself, to move from existing in a blur to living with clarity.

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