"I send you my prayers" is simply a way that human beings express sympathy to other human beings.
We all hope that there is a God and an afterlife, even though most of us have never received any proof.
For example, I send my prayers to the soldiers in Ukraine because the outlook for victory is beginning to look bleak.
We all hope that there is a God and an afterlife, even though most of us have never received any proof.
For example, I send my prayers to the soldiers in Ukraine because the outlook for victory is beginning to look bleak.