Answer in Details
Your dream contains profound spiritual symbols. Let us reflect on this from the perspective of Lord Shiva's teachings and philosophy:
Dreams, in the Shaiva tradition, are often seen as reflections of our inner mind and spiritual state. Lord Shiva is known as the lord of dreams and sleep (Yoganidra), and He teaches us that all experiences—waking or dreaming—are part of Maya, the cosmic illusion. They serve as reminders of the deeper reality and the journey towards self-realization.
Seeing a revered saint like Sri Raghavendra Swamy in a white marble idol, accompanied by an old, pure white figure, may symbolize purity, peace, and spiritual guidance. The time of early morning (Brahma Muhurta, around 3-4 AM) is considered highly auspicious for spiritual experiences and meditation in Shaiva philosophy. This is believed to be the time when divine energies are most accessible.
If the old person was saying something, it could be a message from your subconscious or a higher guidance urging you to focus on your spiritual path, seek purity in thoughts and actions, and perhaps engage in meditation or prayers during early hours. Lord Shiva teaches us to look beyond forms and idols, to seek the eternal consciousness within.
You may consider chanting the "Om Namah Shivaya" mantra during Brahma Muhurta, meditating on Lord Shiva, and seeking clarity about the message you received in your dream. Remember, dreams can be invitations to deepen your devotion and awareness of the ultimate reality, as taught by Lord Shiva.
May Lord Shiva bless you with clarity and spiritual insight.