Theory:

There is something special
about a father's love.
Seems it was sent to me
from someplace up above.
Explanation:
 
The speaker says how a father's love is very special. Here, the speaker is not merely talking about the love between her and her father, but rather about father's love in general.

As the saying goes, 'there is no love greater than that of the parents'. One could observe how the speaker had been stressing on the aspect, with father's love in particular. As Émile Gaboriau has said, “a father is the one friend upon whom we can always rely."*
 
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A father's love is special

The speaker believes that the father's love is divine; it didn't appear from a random place but came from 'someplace up above’. Here, the phrase 'someplace up above' refers to heaven, the place where God resides. Hence, the line could mean that the father (and the love) were sent to the speaker by God.
 
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Love was sent from someplace up above

The idea that the love came from God had also echoed in a line from the previous stanza. The speaker speaks about how she feels lucky to know that he was the father chosen for her. Here, the word 'chosen' suggests that there was a set of divine hands at play. So, the speaker feels that she has been blessed with her father's love.
 
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Father's love made the speaker feel truly blessed
 
However, the line "seems it was sent to me / from someplace up above" may suggest a deeper meaning. Calling it love from heaven, the speaker could be referring to God. Since the poem is about a father's love, it is possible that the speaker was talking about God the Father. In various religions and Christianity in particular, God is often addressed as Father. Hence, the poem might be an expression of the speaker's love and faith in her God.
 
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God the Father
 
Meanings of difficult words:
 
S.No
Words
Meanings
1
DivineConnected with a god, or like a god
2
Up aboveIn the heaven
Reference:
State Council of Educational Research and Training (2019). Term-3 English Standard-8. Special Hero - Christina M Kerschen (pp. 104). Published by the Tamil Nadu Textbook and Educational Services Corporation.
 
* https://www.goodreads.com/quotes/586335-a-father-is-the-one-friend-upon-whom-we-can