וַיַּעֲבֹ֧ד יַעֲקֹ֛ב בְּרָחֵ֖ל שֶׁ֣בַע שָׁנִ֑ים וַיִּהְי֤וּ בְעֵינָיו֙ כְּיָמִ֣ים אֲחָדִ֔ים בְּאַהֲבָת֖וֹ אֹתָֽהּ׃
And Jacob served seven years for Rachel; and they seemed unto him but a few days, for the love he had to her.
Read kabbalistic (mystical) interpretation of Genesis 29:20: and classical mystical sources.