Physical Closeness:
* "Their hands brushed, a spark of electricity running between them."
* "He held her close, the warmth of her body a comfort against his."
Emotional Closeness:
* "They shared a bond that transcended words, a deep understanding that only came with years of knowing each other."
* "They confided in each other, their secrets held safe in the quiet space of their shared trust."
Spiritual Closeness:
* "They felt a connection, a sense of belonging, that extended beyond the physical realm."
* "Their souls resonated, a symphony of shared dreams and aspirations."
General Closeness:
* "They were inseparable, their lives intertwined in a tapestry of shared experiences."
* "Their laughter echoed through the years, a testament to the enduring strength of their bond."
The best sentence for closeness depends on the specific context you're writing about. Consider the relationship you're describing and the emotions you want to convey.