Is it true that a Guru's teachings should be kept secret and only shared with the person they were given to?

According to the teachings in Chapter 18, the idea that a Guru's words should be kept secret is considered an 'imaginary and a meaningless fuss.' The text encourages sharing the Guru's instructions, even those received in dreams, for the enlightenment of all. It compares the Guru to monsoon rain clouds that shower the water of self-bliss with love, questioning why such a gift should be bottled up. Instead, one should partake of it fully and let others partake as well. This open approach is highlighted as Baba's method, which was not secretive.