[Peptobismol]

Sri Sankara went to Kasi and by that time, he had a lot of disciples. One of them, Sanandhyaya, was drying the clothes of his Guru and suddenly Sri Sankara called him to the other bank of the river as he needed the clothes urgently. Sanandhyaya, little realising that he would drown, starts walking into the river. However, the Grace of his Guru resulted in a lotus materialising wherever he was keeping his foot. When asked as to how did he cross the river, he says that when his Guru calls, he is not to worry about anything. Sri Sankara named him as Padma Padar (lotus feet).