One who is completely enlightened has no needs and no responsibilities. Also one who is inert has no needs and no responsibilities. In between these two, everyone has some needs and some responsibilities.
If you sit and make a note of all your responsibilities and all your needs, and if you find that your needs are more than your responsibilities, then life will lead to misery.
But if you take more responsibility and have fewer needs, then you will be happy.
This is the secret.
When your needs are many and you focus only on your needs and don’t take responsibility, you remain unhappy; you keep grumbling and complaining.
When you take more responsibility and your needs are less, everything simply comes to you - enthusiasm, happiness, creativity, etc.
Now the question arises: what if one is hungry? If one is hungry, one has to eat. If one is thirsty, one has to drink. These are all physical needs.
I tell you, your body belongs to this Earth and the Earth will take care of it. You belong to the Divine and the Divine will take care of you.
In fact the Divine is taking care of you.
Make this distinction that you are separate from your body. As soon as you do this, you will see that you belong to the Divine, and then your smile becomes a permanent feature.