www.myrtlerising.com/blog/a-poem-for-lag-bomer-by-nechumelle-jacobs
https://bilvavi.net/files/Bilvavi.Lag.Ba'Omer.Talks.pdf
https://bilvavi.net/qanda-weekly/eng/Bilvavi_242_Bilvavi%20Q&A_Bechukosai-Lag%20B'Omer_5782.pdf
Here are some excerpts (boldface my own addition):
ROCKETS & MERON TRAGEDY: IS MASHIACH COMING?
QUESTION
Are the rockets now in Eretz Yisrael a sign of the “war of Gog and Magog” and that Mashiach is coming?
ANSWER
It is not a sign – it is a part of the war of Gog and Magog, for we are already
amidst it.
LESSONS TO BE LEARNED FROM THE MERON TRAGEDY
QUESTION
When more people told me about it, I said Hashem wants us to do teshuva.
To my surprise, people had strong negative reactions to that!
One wanted to be in the moment of grief feeling for the families of the victims and absorbing the shock, basically calling me unsensitive to the pain of others.
Another did not want to be blamed and told me I was burning up the world.
And both felt very strongly that telling people to do teshuva was too harsh on people who cannot take it, who have gone off the derech hearing those crushing messages about Hashem’s anger at us and becoming hardened and cold to Him.
A third person told me that she is so numb from everything that the tragedy simply has not registered in any way.
I realize that the galus has been long and we are storm tossed and we need Hashem to be gentle with us. Is the message that Hashem wants the Yidden to do teshuva applicable here?
ANSWER
Speak to each person on their own level and in their "language."
Any one lesson that can be learned from something will not be understood by everyone equally.
QUESTION
Is the [negative] reactivity to that all a kelipah in which the very light Hashem wants to come into the world being concealed?
ANSWER
Yes, but before giving over the message to others, first see if the message will be taken positively or negatively by the other.
QUESTION
If it is indeed a message to do teshuvah, what is a way to respond so that those experiencing a push back to doing teshuva can recognize Hashem and “do the work” of opening their hearts?
ANSWER
...You need to figure out what the individual in question needs to hear, based on his on her personal soul and what you think they need to hear.