Thiago Silva said Neymar's tears at the end of Brazil's 2-0 victory over Costa Rica showed the forward knows what it means to play at a World Cup, and said the outburst would have "taken a heavy load" off his shoulders.
Neymar put his head in his hands after scoring Brazil's second goal in the 97th minute at Krestovsky Stadium, bent over in emotion for a few minutes after the final whistle in St Petersburg on Friday.
Brazil had to wait until the 91st minute to open the scoring, Philippe Coutinho finding the net for the second time in the tournament, and Neymar's goal came after a week in which he was criticised for a below-par performance against Switzerland on his return to competitive football after a lengthy injury.
"I think you have to vent, you've taken a heavy load off your back," Silva told Globo Esporte.
"[Crying] is good, I said to him: 'You really cry only when you know what it took to be here in this cup."
Selecao boss Tite said Neymar's show of emotions was courageous and voiced his respect for the star player.
"I didn't talk to Neymar, I only had contact with Coutinho, I did not see [him crying]. I can't evaluate it, but one thing I can tell you: the joy and pride of representing the Selecao is great," he said.
"He has the responsibility, the joy, the pressure and the courage to express this feeling. I, for example, am an emotive guy, but each one has his own characteristics. I respect the characteristics of each player."
Silva acknowledged that Brazil, having taken four points from their opening two games, will be under less pressure in their final Group E match against Serbia.
But should the game go down to the wire, the Paris Saint-Germain defender said his team-mates have shown a never-say-die attitude.
"The third game will be quieter," he said.
"When you win a game like this, as the lights are going down, this automatically gives you peace of mind for the next game because we played a great match today.
"The great merit of this team was not giving up at any time. We say: 'Let's go to the end'."