(This is all somewhat rough and fluxzy, beware)
Shrink, grow, light? Yes, kinda weird. But there's precedent. Shrink and grow were used in Patanjali's Yoga Aphorisms and Light was used by several famous fellows in the context of "Clear" and "of Awareness". Also they are nice and modern and metaphorically straightforward.
Going without food and/or sleep (fasting, sleep deprivation) can enhance the effects of meditation. Shrinking, specifically. It's worth experimenting.
Drugs+meditation can deliver interesting results. It's worth experimenting.
Yoga Philosophy of Patanjali
Be Here Now by Ram Dass
The Ashtavakra Gita