It is stated in the First Canto of Śrīmad-Bhāgavatam, Eleventh Chapter, verse 5, that when Lord Kṛṣṇa returned from the Battlefield of Kurukṣetra to His home at Dvārakā, all the residents of Dvārakā began to talk with Him, as a child talks lovingly to his father after the father's return from foreign countries. This is an example of jubilation.
When Bahulāśva, the King of Mithilā, saw Kṛṣṇa at his palace, he decided to offer his respects by bowing down before Him at least a hundred times, but he was so overcome by feelings of love that after bowing down only once, he forgot his position and could not rise again.
In the Skanda Purāṇa a devotee tells Lord Kṛṣṇa, "My dear Lord, as the sun evaporates all the water on the ground by its scorching heat, so my mental state has dried away the luster of my face and body, due to separation from You." This is an example of withering in ecstatic love.
An expression of disappointment was made by Indra, the King of heaven. When he saw the sun-god, Indra told him, "My dear sun-god, your sunshine is very glorious because it reaches unto the lotus feet of Lord Kṛṣṇa, the master of the Yadu dynasty. I have thousands of eyes, but they have proved to be useless because not even for a moment are they able to see the lotus feet of the Lord."
Reverential devotion for the Lord gradually increases and transforms itself into ecstatic love, then affection and then attachment. In the Tenth Canto of Śrīmad-Bhāgavatam, Thirty-eighth Chapter, verse 6, Akrūra says, "Because I am going to see Lord Kṛṣṇa today, all symptoms of inauspiciousness have already been killed. My life is now successful, because I shall be able to offer my respects unto the lotus feet of the Supreme Personality of Godhead!"
Another devotee in ecstatic reverential affection once said, "When will that glorious day in my life come when it will be possible for me to go to the bank of the Yamunā and see Lord Śrī Kṛṣṇa playing there as a cowherd boy?"
When there is no diminishing of this ecstatic love and when it is freed from all kinds of doubt, the devotee has reached the stage called steady love for Kṛṣṇa. In this stage, all expressions of unhappiness by the devotee are called anubhāva, or ecstatic loving symptoms.
The symptom of ecstatic affection with reverence felt by Bali Mahārāja was expressed as follows: "My dear Lord, You have simultaneously punished me and showed me Your causeless mercy. My conclusion is that when I have taken shelter of Your lotus feet I shall never be disturbed in any condition of life. Whether You give me the opportunity to enjoy all the yogic perfections or You put me into the most abominable condition of hellish life, I shall never be disturbed."
Kṛṣṇa Himself, after seeing Bali Mahārāja, told Uddhava, "My dear friend, how can I express the glorious characteristics of Bali Mahārāja, the son of Virocana? Although the King of the suras (demigods) was cursed by this son of Virocana, and although I cheated him in My incarnation as Vāmana, taking away his dominions throughout the universe, and although I still criticized him for not fulfilling his promise, I have just now seen him in his kingdom, and he feelingly expressed his love for Me."*
When such a feeling of love becomes intensified, it is called affection. In that affectional stage, one cannot bear separation from Kṛṣṇa even for a moment.