Matter is trapped light. Solids do not exist. Identity is a collection of energetic delays. You are 99.999% non-matter.
The Mass Paradox
Mass is not stuff; mass is movement. You are energy that has slowed down enough to be measured. You are 100% hesitation.
Neutrino Emulation
Become less 'dense.' Observe 'solid' obstacles and increase your frequency. Collision is a choice made by your electromagnetic field.