Well, the word "seel" has at least three different meanings to it, and I tried to capsulize all three meanings into it, when writing this ...as different as those 3 individual meanings are to each other. But, the one meaning for the word, that especially applies to way I was trying to use it, means "good opportunity." I used the word "seel" because of what it means (It has good application in this poem), it rhymes with "feel" (the first line of the same stanza. I wanted the first line and third line in each stanza to rhyme), because I was making a pattern with the first lines, being a word that begins with "F," and the last lines in each stanza, being a word that begins with "S," and lastly, because, I already knew that my very last line of the poem, was "SEND," and before you "send" a letter, you "seal" it, so it can double as meaning for that, in just this alternative spelling ("seel"), while at the same time, actually being the real spelling, for what a "good opportunity" is.

Bet you're sorry you asked. haha