Sugar in the tea

I used to drink tea in office with friends. The usual cup of tea which i used to drink include a spoon of sugar, two tea bags, milk powder and water.
The other day i thought i will drink my tea without milk and sugar. The test was not what i expected, it was bitter and i couldn't swallow it. I have to add sugar to make it sweet.

The tea bag give color to the tea. It give good aroma. By itself it did not give any test to the tea.
Sugar give test to the tea. It make the tea complete. It did not add anything to the appearance to the tea.

In life we could be like tea bags which give color to the tea but test bitter or we could be like the sugar which is invisible
but make the tea sweet.

We can be like the sugar in the tea and make the life of people around us sweet. We don't need to be the most visible part of someone life. We could do it without being visible like the sugar in the tea.