Neither St. Valentine Nor OED Would Dig It

I don't find it in the hours of work I put in,

But in a single second, or its smaller fraction:

When I ease off the clutch and the gears quickly bite,

When I lean in a corner, take it almost too tight,

When a few right-wrist twists take me far as I can see.

When I hear the word “love,” that's what it means to me.