Every summer he came to Mashhad, and I accompanied him in Imam Reza’s Holy Shrine.
He used to recite Ziarah of Imam Reza standing.
But after a while I got tired. After getting extremely tired, I sat down.
Again I got tired of sitting, so I stood up.
But Ayatollah Bahjat, albeit old, recited Ziarah and said Zikr standing all the time in front of the holy tomb of Imam Reza.
His Ziarah usually lasted for two hours.
Once coming out of Imam Reza’s holy shrine, I asked him, “Don’t you get tired?! Even though we're young, we get tired!”
He did not respond.
When his Ziarah finished, it was the time of going to all courtyards of Imam Reza’s holy shrine; he went to all courtyards and to all religious scholars’ graves, reciting the Quranic chapter al-Fatihah for them.
Once coming out of the courtyard, he pointed to me, saying “Come here!” He took some money out of his pocket, handed it to me and said:
“Go to the herbalist and buy the medicine “LOVE” so that you do not get so tired.”

Source: a memory shared by one of his companions.