Theme Exploration of Time and Perception

Read the following excerpt from a poem:

"The clock ticks slowly, a heartbeat faint,
Each second drips like honey, thick and quaint.
In shadows cast by fading light,
The world creeps on, yet feels so bright.
Yet is it real, or mere illusion?
Life's fluid dance, a soft delusion."

Based on this excerpt, which theme resonates most strongly with the poem's exploration of time and perception?