The kanji 育 originally depicted a child (the top part, resembling an inverted 子) being nurtured, illustrating the concepts of **growth** and **raising**.
Imagine a baby (the inverted child at the top) being fed and cared for (the bottom part, resembling 肉 for sustenance), allowing it to **grow** and be **brought up**.
'IKU' — think of 'EEK!' as a child suddenly GROWS so fast!