The speaker expresses their desire to be various parts of the person they love in order to support them through different experiences. They wanted to be the person's hands to help them climb, eyes to help them read quickly, teeth to help them chew sugarcane, feet to help them walk long distances, fingers to help them write, skin to help withstand heat, breath to help in small spaces, memory to help them recall the past, laughter to help them celebrate, stomach to help with constipation, tongue to help them speak loudly, bones to help prevent collapse, nails to help scratch, confidence to help face thieves alone, inspiration to help when life is difficult, ability to fantasize to help sleep, hair to look beautiful