Even though the people of the world have forgotten God and may say that God is dead, this is not a fact. One can understand God when one takes to the Krsna consciousness movement, and thus one can be happy
SB Canto 8
The entire cosmic manifestation is the body of the Supreme Personality of Godhead, the Absolute Truth, who has millions of names and unlimited potencies. He is self-effulgent, unborn and changeless. He is the beginning of everything, but He has no beginning. Because He has created this cosmic manifestation by His external energy, the universe appears to be created, maintained and annihilated by Him. Nonetheless, He remains inactive in His spiritual energy and is untouched by the activities of the material energy.
Although the material and spiritual energies both belong to the Lord, He is impossible to understand as long as we are in the material energy. And when we come to the spiritual energy, He is very easy to know. As stated in Śrīmad-Bhāgavatam (SB 1.7.23): māyāṁ vyudasya cic-chaktyā kaivalye sthita ātmani. Although the external energy belongs to the Lord, when one is in the external energy (mama māyā duratyayā (BG 7.14)) He is very difficult to understand. However, when one comes to the spiritual energy, one can understand Him. Therefore in Bhagavad-gītā (BG 18.55) it is said, bhaktyā mām abhijānāti yāvān yaś cāsmi tattvataḥ: one who wants to understand the Supreme Personality of Godhead in reality must take to the platform of bhakti, or Kṛṣṇa consciousness. This bhakti consists of various activities (śravaṇaṁ kīrtanaṁ viṣṇoḥ smaraṇaṁ pāda-sevanam/ arcanaṁ vandanaṁ dāsyaṁ sakhyam ātma-nivedanam (SB 7.5.23)), and to understand the Lord one must take to this path of devotional service. Even though the people of the world have forgotten God and may say that God is dead, this is not a fact. One can understand God when one takes to the Kṛṣṇa consciousness movement, and thus one can be happy.