"Love" (usually with the possessive "your" attached) appears in every line of the first verse (repeated as the third and fourth verses):
Tell me how to keep your loveYou know how I need your loveTell me how you'll* keep the love within your arms from me
That "your love" is repeated so frequently illustrates its importance for the narrator, emphasizing how "I need your love."
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*I think it's "you'll" in the first verse but just "you" in the third and fourth.