Small things, when repeated over time, can create something big.
Even tiny drops of water can eventually form a lake.
In the same way, small efforts, savings, or actions can grow into something important.
Example
If you study Turkish for 10 minutes every day, you will improve a lot. Damlaya damlaya göl olur.
Her gün biraz para biriktiriyorum. Damlaya damlaya göl olur.
İğneyle Kuyu Kazmak
To do something very slowly and with great effort.
It describes a situation where progress is very slow, but continuous effort is needed.
Example
Türkçe öğrenmek bazen iğneyle kuyu kazmak gibi ama vazgeçmiyorum.

